Coining assembly for sewing machine

Abstract

The utility model discloses a coining assembly for a sewing machine, and relates to the technical field of sewing machine assemblies. A coining assembly for a sewing machine comprises a base plate and further comprises a guide ring which is connected with the base plate through a swing arm assembly and is perpendicular to the base plate, the guide ring is provided with a threading hole, and the base plate is provided with a positioning hole; the fine adjustment of the guide ring can be completed as required, so that the guide ring is more flexible to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing machine subassembly technical field, concretely relates to a precision pressing subassembly for sewing machine. BACKGROUND

[0002] Sewing machine is also called sewing machine, and it is a kind of machine for sewing cloth or other materials, is widely used in garment manufacturing, household product making and various fabric related work.It connects material layers by a needle and thread.Modern sewing machines are not limited to household use, and many are designed for industrial use, with faster speed and higher precision.

[0003] When sewing machine is used, various subassemblies need to be used in cooperation, for example, metal guide ring for guiding cotton thread, and the existing cotton thread guide ring structure is relatively simple, and the position of guide ring is basically fixed, which will lead to the failure to complete the fine adjustment of guide ring, and the flexibility in use is poor UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and provide a precision pressing subassembly for sewing machine, which can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic idea of the technical scheme of the utility model is:

[0006] A precision pressing subassembly for sewing machine, comprising a base plate, further comprising: a guide ring connected with the base plate through a swing arm assembly and vertically arranged with the base plate, wherein a threading hole is formed in the guide ring, and a positioning hole is arranged on the base plate.

[0007] Preferably, the swing arm assembly comprises an upper arm fixedly connected to the base plate, a lateral wall of the guide ring is fixedly connected with a horizontal plate, the horizontal plate is fixedly connected with a lower arm, and an inclined beam is fixedly connected between the upper arm and the lower arm.

[0008] Preferably, a U-shaped counterbore is formed in the base plate, the positioning hole is arranged in the U-shaped counterbore, and anti-skid grooves are arranged in the U-shaped counterbore.

[0009] Preferably, the guide ring is conical in shape, and the upper and lower ends of the threading hole are provided with annular chamfers.

[0010] Preferably, the end of the positioning hole is clamped with an annular pad, the outer wall of the annular pad is provided with a first anti-skid pattern protrusion, and the annular pad and the U-shaped counterbore are arranged at the two ends of the positioning hole respectively.

[0011] Further, one end of the positioning hole is provided with an annular slot, the annular pad is clamped in the annular slot, the end of the annular pad is provided with a positioning rod, and the annular slot is provided with a insertion hole, and the positioning rod is inserted into the insertion hole.

[0012] Further, the outer walls of the upper arm, the lower arm and the inclined beam are all provided with a strip-shaped slot, the strip-shaped slot and the guide ring are located on the two sides of the inclined beam respectively, and the strip-shaped slot is clamped with a strip-shaped pad.

[0013] Further, the outer wall of the strip-shaped pad is provided with a second anti-skid protrusion.

[0014] After the technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art:

[0015] 1. The utility model discloses a loosening screw, then rotating the base plate, and the base plate will drive the guide ring to be angular by the upper arm, the inclined beam, the lower arm and the horizontal plate, that is, the fine adjustment work of the guide ring can be completed, so that the use of the guide ring is more flexible.

[0016] 2. The utility model discloses that the annular pad in the annular slot can improve the friction of the base plate, so that the adjusted guide ring is not prone to automatic position deviation, and the stability of the guide ring is guaranteed.

[0017] 3. The utility model discloses that the strip-shaped pad in the strip-shaped slot can also prevent the outer wall of the sewing machine from being scratched, and after the adjustment is completed, the strip-shaped pad can also improve the friction between the upper arm, the inclined beam, the lower arm, the horizontal plate and the sewing machine, so that the guide ring is more stable.

[0018] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. DRAWINGS

[0019] In the drawings:

[0020] Figure 1 It is a first perspective axonometric structural schematic view of the precision pressing assembly for the sewing machine.

[0021] Figure 2 It is a second perspective axonometric structural schematic view of the precision pressing assembly for the sewing machine.

[0022] Figure 3 It is an explosion view of the precision pressing assembly for the sewing machine.

[0023] Figure 4 It is a sectional structural schematic view of the precision pressing assembly for the sewing machine.

[0024] Figure 5 It is an annular pad structural schematic view of the precision pressing assembly for the sewing machine.

[0025] In the figure: 1, base plate; 2, guide ring; 3, threading hole; 4, upper arm; 5, inclined beam; 6, lower arm; 7, cross plate; 8, U-shaped counterbore; 9, positioning hole; 10, annular chamfer; 11, annular slot; 12, annular pad; 13, first anti-skid pattern protrusion; 14, insertion hole; 15, positioning rod; 16, strip-shaped slot; 17, strip-shaped pad; 18, second anti-skid protrusion; 19, anti-skid slot. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model but not to limit the scope of the utility model.

[0027] Embodiment: refer to Figures 1-5 A precision pressing assembly for sewing machine, comprising a base plate 1, further comprising: a guide ring 2 for guiding cotton thread, connected with the base plate 1 through a swing arm assembly and vertically arranged with the base plate 1, wherein the guide ring 2 is conical in shape, and the upper and lower ends of the threading hole 3 are both provided with an annular chamfer 10, the annular chamfer 10 is used to reduce the frictional resistance to the cotton thread, the guide ring 2 is provided with a threading hole 3 for threading the cotton thread, the base plate 1 is provided with a positioning hole 9, the swing arm assembly comprises an upper arm 4 fixedly connected to the base plate 1, the side wall of the guide ring 2 is fixedly connected with a cross plate 7, the cross plate 7 is fixedly connected with a lower arm 6, and the upper arm 4 and the lower arm 6 are fixedly connected with an inclined beam 5 arranged obliquely therebetween.

[0028] In use, the screw is passed through the positioning hole 9, then the base plate 1 is fixed on the sewing machine, and the installation of the guide ring 2 is completed, when the angle of the guide ring 2 needs to be adjusted, the screw is loosened, then the base plate 1 is rotated, and the base plate 1 drives the guide ring 2 to be angularly offset through the upper arm 4, the inclined beam 5, the lower arm 6 and the cross plate 7, so that the fine adjustment of the guide ring 2 is completed, and the use of the guide ring 2 is more flexible.

[0029] The base plate 1 is provided with a U-shaped counterbore 8, the positioning hole 9 is arranged in the U-shaped counterbore 8, and the U-shaped counterbore 8 is provided with circumferentially distributed anti-skid slots 19, so that the screw nut is not easily prominent, and the stability of the screw is improved.

[0030] The end of the positioning hole 9 is clamped with an annular pad 12, the outer wall of the annular pad 12 is provided with a first anti-skid pattern protrusion 13 for improving the anti-skid performance, the annular pad 12 and the U-shaped counterbore 8 are arranged at the two ends of the positioning hole 9 respectively, one end of the positioning hole 9 is provided with an annular slot 11, the annular pad 12 is clamped in the annular slot 11, the end of the annular pad 12 is provided with a positioning rod 15, the annular slot 11 is provided with an insertion hole 14, and the positioning rod 15 is inserted into the insertion hole 14.

[0031] When the screw is tightened, the annular pad 12 in the annular groove 11 can increase the friction of the base plate 1, so that the adjusted guide ring 2 is not prone to automatic position deviation, thereby ensuring the stability of the guide ring 2. In the use of the annular pad 12, the positioning rod 15 can increase the stability of the annular pad 12 in the annular groove 11, prevent the annular pad 12 from rotating in the annular groove 11, and facilitate replacement of the annular pad 12.

[0032] The outer walls of the upper arm 4, the lower arm 6, and the inclined beam 5 are each provided with a strip-shaped groove 16, the strip-shaped groove 16 is located on both sides of the inclined beam 5, and the strip-shaped pad 17 is clamped in the strip-shaped groove 16. The outer wall of the strip-shaped pad 17 is provided with a second anti-skid protrusion 18 for increasing friction.

[0033] Specifically, when the upper arm 4, the inclined beam 5, the lower arm 6, and the horizontal plate 7 drive the guide ring 2 to deviate in angle, the strip-shaped pad 17 in the strip-shaped groove 16 can also prevent scratching the outer wall of the sewing machine. After adjustment is completed, the strip-shaped pad 17 can increase the friction between the upper arm 4, the inclined beam 5, the lower arm 6, the horizontal plate 7, and the sewing machine, so that the guide ring 2 is more stable.

[0034] The precision pressing assembly of the sewing machine is used in use. The screw is inserted through the positioning hole 9, and then the base plate 1 is fixed on the sewing machine, so that the installation of the guide ring 2 is completed. When the angle of the guide ring 2 needs to be adjusted, the screw is loosened, and then the base plate 1 drives the guide ring 2 to deviate in angle through the upper arm 4, the inclined beam 5, the lower arm 6, and the horizontal plate 7, so that the fine adjustment of the guide ring 2 is completed, and the use of the guide ring 2 is more flexible.

[0035] When the screw is tightened, the annular pad 12 in the annular groove 11 can increase the friction of the base plate 1, so that the adjusted guide ring 2 is not prone to automatic position deviation, thereby ensuring the stability of the guide ring 2. In the use of the annular pad 12, the positioning rod 15 can increase the stability of the annular pad 12 in the annular groove 11, prevent the annular pad 12 from rotating in the annular groove 11, and facilitate replacement of the annular pad 12.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and equivalent embodiments with equivalent changes can be obtained. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. A calibrating assembly for a sewing machine comprising a base plate (1), characterized in that, Also include: The guide ring (2) is connected with the base plate (1) through the swing arm assembly, and is vertically arranged with the base plate (1), Wherein, the guide ring (2) is provided with a threading hole (3), and the base plate (1) is provided with a positioning hole (9).

2. A tacking assembly for a sewing machine as defined in claim 1, wherein The swing arm assembly includes an upper arm (4) fixedly connected to the base plate (1), a lateral wall of the guide ring (2) is fixedly connected with a transverse plate (7), the transverse plate (7) is fixedly connected with a lower arm (6), and an inclined beam (5) is fixedly connected between the upper arm (4) and the lower arm (6).

3. The tucker assembly of claim 1 wherein: The base plate (1) is provided with a U-shaped counterbore (8), the positioning hole (9) is arranged in the U-shaped counterbore (8), and the U-shaped counterbore (8) is provided with circumferentially distributed anti-skid grooves (19).

4. The tacking assembly of claim 1, wherein: The outer shape of the guide ring (2) is conical, and the upper and lower ends of the threading hole (3) are provided with annular chamfers (10).

5. The tucker assembly of claim 1 wherein: The end of the positioning hole (9) is clamped with an annular pad (12), the outer wall of the annular pad (12) is provided with a first anti-skid pattern protrusion (13), and the annular pad (12) and the U-shaped counterbore (8) are arranged at both ends of the positioning hole (9) respectively.

6. A hold-down assembly for a sewing machine as defined in claim 5, wherein One end of the positioning hole (9) is provided with an annular slot (11), the annular pad (12) is clamped in the annular slot (11), the end of the annular pad (12) is provided with a positioning rod (15), the annular slot (11) is provided with a jack (14), and the positioning rod (15) is inserted into the jack (14).

7. The tacking assembly of claim 2 wherein, The outer walls of the upper arm (4), the lower arm (6) and the inclined beam (5) are provided with strip-shaped grooves (16), the strip-shaped grooves (16) are located on both sides of the inclined beam (5) respectively, and the strip-shaped grooves (16) are clamped with strip-shaped pads (17).

8. The tacking assembly of claim 7, wherein: The outer wall of the strip-shaped pad (17) is provided with a second anti-skid protrusion (18).

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